Slack, Spotify and Michael Lewis will join big-shot Silicon Valley investors to talk direct listingsCNBC • 10/01/19
Introducing the Rule of 40 (And Why Investors Should Avoid Slack, Uber, and Jumia)The Motley Fool • 09/25/19
Mizuho Appreciates Slack's Platform, But Competitive Sidelines Are Too Big To IgnoreBenzinga • 09/13/19
The Ratings Game: Slack’s forecast implies ‘anemic’ growth but some Wall Street analysts seem unfazedMarket Watch • 09/05/19